Orlando Barrera II discovered that incorrect memory handling in the
implementation of the web worker API could lead to the execution of
arbitrary code.

CVE-2009-1571

Alin Rad Pop discovered that incorrect memory handling in the HTML
parser could lead to the execution of arbitrary code.

CVE-2009-3988

Hidetake Jo discovered that the same-origin policy can be bypassed
through window.dialogArguments.

CVE-2010-0162

Georgi Guninski discovered that the same origin policy can be bypassed
through specially crafted SVG documents.

For the lenny-backports distribution the problems have been fixed in
version 1.9.1.8-4~bpo50+1.
Upgrade instructions
--------------------
If you don't use pinning (see [1]) you have to update the package
manually via "apt-get -t lenny-backports install <packagelist>" with
the packagelist of your installed packages affected by this update.
[1] <http://backports.org/dokuwiki/doku.php?id=instructions>
We recommend to pin the backports repository to 200 so that new
versions of installed backports will be installed automatically.
Package: *
Pin: release a=lenny-backports
Pin-Priority: 200